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Automatic Electric Alarm.

Description: Patent for an inexpensive, simple, and durable automatic electric alarm that allows people in house or hotel rooms, mines, ships, shops, etc. to signal for another person. The alarm is wired to a clock so it can be programmed to go off at a certain time.
Date: January 7, 1896
Creator: Stansel, Thomas J.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Multiple Telegraph

Description: Patent for "a simple device of this character by means of which any one of a number of instruments or translating devices at a distance may be operated over a single line-wire and by means of a single flow of electric current through said wire" (lines 10-15).
Date: May 7, 1901
Creator: Foster, Samuel T., Jr.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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